The Infinite Energy is not in any need of energy, which is what worship provides (as exampled at world acclaimed rock n' roll bands' sold out shows). They are nothing without your help.
That's what this playground is all about.. see who can become the greatest god with the most worship.As you've noticed, Lucifer is hands-down the greatest player of this game. He has every Christian Church worshiping him at least once a week. The Bright and Morning Star! A Star is Born and is given much amazing Glory! (the real Jesus was just a Samaritan [John 8]).
Revelation 22:16
""I, Jesus, have sent my angel to give you this testimony for the churches. I am the Root and the Offspring of David, and the bright Morning Star."
The Underworld is also playing a game but their game is different than ours. The way they get glory among their peers is to be the one to cause human beings to choose paths that reaps the greatest suffering for the path chooser.
Think about it. Why would blood feed them? It makes much more sense that getting humans to shed each others' blood is the way they're getting their power. Like gang reps on our streets.